Patent US4879146A successfully refreshed from Google Patents.
US4879146A
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US
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Coffee carafe
Assignee: Individual
•
Filing: 1988-02-18
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Granted: 1989-11-07
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Expires: 2008-02-18
Abstract
Abstract The present invention is a coffee carafe formed of a thin walled polyetherimide and having characteristics permitting heating of the resinous carafe on a hot plate. The carafe is prepared by blow molding to form a thin wall construction.
Inventors
- 👤 Kendrick A. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:50
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/12; A47J; A47J36/00; A47J36/02; A47J36/04; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
A coffee carafe suitable for heating on a hot plate having a temperature of at least 190° F., said carafe comprising a bowl and an integral handle being formed by blow molding and having a side wall thickness of between about 0.1 and 0.06 inches and a base thickness of between about 0.015 up to 0.06 inches, said side wall and said base consisting of unreinforced polyetherimide being heat stable to permit heating of said carafe on said hot plate, said polyetherimide having molecular weight of about 19,000 and glass transition temperature of at least 400° F.
Claim 2
Dependent Claim
97 words
A coffee carafe suitable for heating on a hot plate having a temperature of at least 190° F., said carafe comprising a bowl and an integral handle being formed by blow molding and having a side wall thickness of between about 0.1 and 0.06 inches and a base thickness of between about 0.015 up to 0.06 inches, said side wall and said base consisting of unreinforced polyetherimide being heat stable to permit heating of said carafe on said hot plate, said polyetherimide having molecular weight of about 19,000 and glass transition temperature of at least 400° F.
Claim 3
Dependent Claim
27 words
The coffee carafe of claim 1 wherein said carafe is heat stable on a coffee heating plate to a plate temperature of at least about 375° F.
Claim 4
Dependent Claim
37 words
The coffee carafe of claim 1 suitable for heating on a hot plate having a temperature of about 250° to 400° F., said polyetherimide having a stability to heat of a temperature of at least 375° F.
Claim 5
Dependent Claim
38 words
The coffee carafe of claim 3 wherein said bowl portion is blow molded of polyetherimide resin and having a side wall thickness of between 0.01 and 0.03 inches and a base thickness of between 0.015 and 0.06 inches.
Claim 6
Dependent Claim
15 words
The coffee carafe of claim 4 wherein said handle is removably attached to said bowl.
Claim 7
Dependent Claim
15 words
The coffee carafe of claim 4 wherein said handle is molded integral with said bowl.
Claim 8
Dependent Claim
20 words
The coffee carafe of claim 4 wherein said bowl has a side wall thickness of between 0.015 and 0.025 inches.
Claim 9
Dependent Claim
37 words
The coffee carafe of claim 7 wherein said handle includes a metal band which surrounds an upper portion of said bowl, said handle portion having adjustment means to tighten said handle into supporting engage with said bowl.
Claim 10
Dependent Claim
19 words
The coffee carafe of claim 3 wherein said bowl includes a flared upper portion which provides a pouring spout.
Claim 11
Dependent Claim
39 words
The coffee carafe of claim 6 having a side wall thickness of about 0.02 inches, said polyetherimide being heat stable to permit heating of said carafe on a coffee heating plate having a temperature of at least 400° F.
Claim 12
Dependent Claim
74 words
A heat stable vessel suitable for heating on a hot plate of at least 190° F. consisting of unreinforced polyetherimide having a side wall with a thickness of between 0.01 and 0.06 inches and a base of between about 0.015 up to 0.06 inches, said vessel being heat stable to a temperature of about 350° F., said polyetherimide having a molecular weight of about 19,000 and glass transition temperature of at least 400° F.
Claim 13
Dependent Claim
74 words
A heat stable vessel suitable for heating on a hot plate of at least 190° F. consisting of unreinforced polyetherimide having a side wall with a thickness of between 0.01 and 0.06 inches and a base of between about 0.015 up to 0.06 inches, said vessel being heat stable to a temperature of about 350° F., said polyetherimide having a molecular weight of about 19,000 and glass transition temperature of at least 400° F.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |